Although my only experience in the Zelda series(Which, after Zelda 2,
started getting treated like Tenchi Muyo(Characters get reintroduced,
and have different origins)) is Zelda 3, I do know that because a girl
gives Link a horse is no reason for Link to marry her! besides, I
always thought that Link and Zelda were boyfriend/girlfriend. Of
course, with origin stories being changed with every game, that theory
might not stand long.